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255120425 = 5275924709
BaseRepresentation
bin11110011010011…
…01010000101001
3122210001110102122
433031031100221
51010302323200
641152041025
76215326220
oct1715152051
9583043378
10255120425
1112101082a
1271533175
1340b16241
1425c4dcb7
15175e6385
hexf34d429

255120425 has 24 divisors (see below), whose sum is σ = 367684800. Its totient is φ = 171967680.

The previous prime is 255120413. The next prime is 255120433. The reversal of 255120425 is 524021552.

255120425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 255120425 - 218 = 254858281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255120394 and 255120403.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2030 + ... + 22679.

It is an arithmetic number, because the mean of its divisors is an integer number (15320200).

Almost surely, 2255120425 is an apocalyptic number.

255120425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

255120425 is a deficient number, since it is larger than the sum of its proper divisors (112564375).

255120425 is a wasteful number, since it uses less digits than its factorization.

255120425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24785 (or 24780 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 255120425 is about 15972.4896306118. The cubic root of 255120425 is about 634.2323789001.

Adding to 255120425 its reverse (524021552), we get a palindrome (779141977).

The spelling of 255120425 in words is "two hundred fifty-five million, one hundred twenty thousand, four hundred twenty-five".

Divisors: 1 5 7 25 35 59 175 295 413 1475 2065 10325 24709 123545 172963 617725 864815 1457831 4324075 7289155 10204817 36445775 51024085 255120425